npm postinstall fails behind an HTTPS proxy

Current behavior:

I’m running behind an HTTPS corporate proxy configured with a self-signed certificate. This requires to setup the self-signed certificate with NODE_EXTRA_CA_CERTS environment variable.

yarn install cypress gives the following error (same with npm)

> cypress@2.1.0 postinstall /app/oison-frontend/node_modules/cypress
> node index.js --exec install

Installing Cypress (version: 2.1.0)

 ✖  Downloading Cypress
   → Cypress Version: 2.1.0
    Unzipping Cypress
    Finishing Installation
The Cypress App could not be downloaded.

Please check network connectivity and try again:
----------

URL: https://download.cypress.io/desktop/2.1.0?platform=linux&arch=x64
Error: self signed certificate in certificate chain
----------

Platform: linux (Debian - 8.10)
Cypress Version: 2.1.0

It seems NODE_EXTRA_CA_CERTS is not honored by the post installation script downloading cypress binary.

Desired behavior:

It should work

How to reproduce:

Come to my company and have fun configuring this proxy sh*t.

Additional Info (images, stack traces, etc)

It was working yesterday, so I think something has changed in the package of 2.1.0 release.

• Operating System: Ubuntu
• Cypress Version: >=2.1
• Browser Version:

[gkemp94]

I had this problem a few days ago and found that the best workaround was to download the zip file directly from the site then type the following command before attempting npm install. This should then install the file from your zip file. Hope that helps.

CYPRESS_BINARY_VERSION=/local/path/to/cypress.zip

[davidsteinsland]

Cypress should (at least) honor the following env vars, which is the de facto way of configuring proxy:

• HTTP_PROXY / http_proxy
• HTTPS_PROXY / https_proxy

Also, because it’s node:

• NODE_EXTRA_CA_CERTS

And perhaps also the following npm configs:

• cafile
• https-proxy
• proxy

Stuff like setting NODE_TLS_REJECT_UNAUTHORIZED=0 or similar is out of the question, and defeats the whole purpose of secure connections.